This phenomenon is govern
This phenomenon is governed by Amontons' laws and has a "dry" variety modeled by an equation named for Coulomb. It can be measured with a tribometer and can be reduced to near zero in graphite. It is proportional to the normal force, and this force's namesake coefficient is denoted by the letter mu [MEW]. It comes in static and kinetic varieties. For 10 points, name this force which opposes the movement of surfaces in contact with each other.
This phenomenon is governed by Amontons' laws and has a "dry" variety modeled by an equation named for Coulomb.
friction